Table 4: Values of and for , Pr , and various .

Buoyancy assisting flow Buoyancy opposing flow

0.0 6.8627 1.2032 1.0149 0.9356
0.5 8.3387 1.2788 3.3862 1.1005
1.0 11.379 1.3952 7.5631 1.2931
1.5 15.567 1.5207 12.692 1.4596
2.0 20.578 1.6420 18.479 1.6032